A rigid-flexible crack detection system for narrow spaces in buildings

Abstract

A crack detection system for a narrow space in a building that integrates rigidity and flexibility, including a wheeled mobile trolley and a crack detection system. The wheeled mobile trolley is equipped with a motion control system, a laser navigation system, an ultrasonic obstacle avoidance system, and a lighting system; crack detection The system includes a mobile detection platform, an image acquisition device and an image processing system; the mobile detection platform is a snake-shaped mechanical arm installed on the top of a wheeled mobile trolley, the image acquisition device is a motion camera installed at the front end of the snake-shaped mechanical arm, and the image processing system includes Memory, model training data set and crack detection model based on U-Net network; the advantages of the present invention are: the overall crack detection system can be independently moved and controlled, reducing labor and material consumption, high safety and good economic benefits.

Description

technical field [0001] The invention relates to a building crack detection system, in particular to a system and a detection method for detecting building cracks in a complex environment by using a rigid-flexible mechanical device. The problem of low detectability belongs to the field of engineering structure safety detection, especially the field of crack detection. Background technique [0002] In the fields of water conservancy engineering, construction engineering and aerospace engineering technology, the results of engineering structure safety inspection are an important basis for judging whether the project can be put into actual operation. In the safety inspection of engineering structures, building crack detection is one of the common inspection items. Cracks are caused by shrinkage due to dehydration of concrete during the hardening process of concrete, or uneven expansion due to the influence of temperature differences. The existence and development of cracks usu...

AI Technical Summary

Problems solved by technology

However, due to the inherent volume of drones in narrow spaces such as pipelines, tunnels or wall gaps inside buildings, it is impossible to enter the above-mentioned environment for crack detection, and in unopened areas, the control accuracy of drones is difficult to achieve. operational requirements, it is difficult to achieve effective crack detection

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